ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/133 |
Resumo: | Mechanical properties studies of wood usually involve destructive wood assessments, with time-consuming tests that use large amounts of resource (wood). Although this is not a limiting factor, it could be attenuated by the use of a nondestructive technique known as near infrared spectroscopy (NIRS). This technique has been applied to evaluate compounds containing C-H, N-H, S-H or O-H bonds, and involves quick analyses and can be applied to process control tasks. The objective of this work is to use the NIRS technique to obtain calibrations for mechanical properties of Eucalyptus sp. wood. A natural E. urophylla hybrid at age 7 was used as obtained from V&M Florestal crops. Spectra were measured directly in solid wood (radial, tangential and transverse faces) and in ground wood, in diffuse reflectance mode, using a Bruker spectrometer in the 800 to 1,500 nm range. The NIRS technique proved suitable to estimate modulus of elasticity in solid wood, with values r=0.91 and RPD=2.6, and in ground wood, with values r=0.87 and RPD=2.0. Modulus of rupture and compressive strength presented r values below 0.9. First and second derivative pretreatments provided a slight increase in correlation values for the properties in question. Calibrations for different plank faces did not present a defined variation pattern. Solid wood and ground wood presented similar correlation values for all properties. |
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ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPYNIRSEucalyptuscharacteristicsMechanical properties studies of wood usually involve destructive wood assessments, with time-consuming tests that use large amounts of resource (wood). Although this is not a limiting factor, it could be attenuated by the use of a nondestructive technique known as near infrared spectroscopy (NIRS). This technique has been applied to evaluate compounds containing C-H, N-H, S-H or O-H bonds, and involves quick analyses and can be applied to process control tasks. The objective of this work is to use the NIRS technique to obtain calibrations for mechanical properties of Eucalyptus sp. wood. A natural E. urophylla hybrid at age 7 was used as obtained from V&M Florestal crops. Spectra were measured directly in solid wood (radial, tangential and transverse faces) and in ground wood, in diffuse reflectance mode, using a Bruker spectrometer in the 800 to 1,500 nm range. The NIRS technique proved suitable to estimate modulus of elasticity in solid wood, with values r=0.91 and RPD=2.6, and in ground wood, with values r=0.87 and RPD=2.0. Modulus of rupture and compressive strength presented r values below 0.9. First and second derivative pretreatments provided a slight increase in correlation values for the properties in question. Calibrations for different plank faces did not present a defined variation pattern. Solid wood and ground wood presented similar correlation values for all properties.CERNECERNE2015-05-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/133CERNE; Vol. 16 No. 3 (2010); 291-298CERNE; v. 16 n. 3 (2010); 291-2982317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/133/106Copyright (c) 2015 Carlos Rogério Andrade, Paulo Fernando Trugilho, Alfredo Napoli, Renato da Silva Vieira, José Tarcísio Lima, Leonardo Chagas de Sousainfo:eu-repo/semantics/openAccessAndrade, Carlos RogérioTrugilho, Paulo FernandoNapoli, AlfredoVieira, Renato da SilvaLima, José TarcísioSousa, Leonardo Chagas de2015-05-14T12:07:47Zoai:cerne.ufla.br:article/133Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:53:32.771658Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
title |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
spellingShingle |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY Andrade, Carlos Rogério NIRS Eucalyptus characteristics |
title_short |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
title_full |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
title_fullStr |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
title_full_unstemmed |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
title_sort |
ESTIMATION OF THE MECHANICAL PROPERTIES OF WOOD FROM Eucalyptus urophylla USING NEAR INFRARED SPECTROSCOPY |
author |
Andrade, Carlos Rogério |
author_facet |
Andrade, Carlos Rogério Trugilho, Paulo Fernando Napoli, Alfredo Vieira, Renato da Silva Lima, José Tarcísio Sousa, Leonardo Chagas de |
author_role |
author |
author2 |
Trugilho, Paulo Fernando Napoli, Alfredo Vieira, Renato da Silva Lima, José Tarcísio Sousa, Leonardo Chagas de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Andrade, Carlos Rogério Trugilho, Paulo Fernando Napoli, Alfredo Vieira, Renato da Silva Lima, José Tarcísio Sousa, Leonardo Chagas de |
dc.subject.por.fl_str_mv |
NIRS Eucalyptus characteristics |
topic |
NIRS Eucalyptus characteristics |
description |
Mechanical properties studies of wood usually involve destructive wood assessments, with time-consuming tests that use large amounts of resource (wood). Although this is not a limiting factor, it could be attenuated by the use of a nondestructive technique known as near infrared spectroscopy (NIRS). This technique has been applied to evaluate compounds containing C-H, N-H, S-H or O-H bonds, and involves quick analyses and can be applied to process control tasks. The objective of this work is to use the NIRS technique to obtain calibrations for mechanical properties of Eucalyptus sp. wood. A natural E. urophylla hybrid at age 7 was used as obtained from V&M Florestal crops. Spectra were measured directly in solid wood (radial, tangential and transverse faces) and in ground wood, in diffuse reflectance mode, using a Bruker spectrometer in the 800 to 1,500 nm range. The NIRS technique proved suitable to estimate modulus of elasticity in solid wood, with values r=0.91 and RPD=2.6, and in ground wood, with values r=0.87 and RPD=2.0. Modulus of rupture and compressive strength presented r values below 0.9. First and second derivative pretreatments provided a slight increase in correlation values for the properties in question. Calibrations for different plank faces did not present a defined variation pattern. Solid wood and ground wood presented similar correlation values for all properties. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/133 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/133 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/133/106 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 16 No. 3 (2010); 291-298 CERNE; v. 16 n. 3 (2010); 291-298 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874939233239040 |